Fastening means



July 23, 1929. F. n. HIGLEY FASTENING MEANS med Feb. z5. 192s Patented July 23, 1929.

UNITED STATES PATENT OFFICE.

FRANK iis-HIGLEY, or

CHARLES o. CHANDLER, oF

EAST CLEVELAND, OHIO.

CLEVELAND HEIGHTSOHIO, ASSIGNOR OF ONESIXTH TO CLEVELAND, OHIO, ONE-SIXTH T0 A. L. COCHRAN, OF CLEVELAND HEIGHTS, OHIO, .AND ONE-THIRD T0 WALTER Af CLEAVELAND, 0F

FASTENING MEANS.

Application filed February 23, 1926. Serial No. 90,031.

This invention relates to fastening means of the general type wherein a headed member is inserted into a hole or cavity in a relatively soft material such as wood, for the purpose of-securing with the material an object such as a metal plate engaged by the head of the fastener. The objects of the invention are to provide a two-piece fastening which shall be securable with thc greatest of ease, and to this end my invention contemplates preassembling Athe pieces of the fastener', and interlocking the pieces in preassembled relation, all in the manufacturing process.

The exact nature of my invention will be apparent from the following description taken in connection with the accompanying drawings in which:

Figs. l and 2 are 'quarter sectional views of the inner Vand outer members respectively of a typical form of my invention,

Figs. 34 and 4 show in half section, the members assembled to form a fastening unit shown in preliminary and secured relative positions respectively.

In the example chosen to illustrate my invention the fastener consists of two members pressed to shape or. otherwise formedl preferably of sheet metal. Oneof the members 1, isl` generally cylindricalbut headed at one end as shown at 3, and at the othery provided with sharply pointed prongs such as the furoations 4; the other member 2, is also generally cylindrical, turned out at` one end to form a collar or flange 5 thereon, and provided near its other end with openings 6, to correspond with the prongs upon the headed member in a manner to be described; and the relative diameters of the members are such that the headed member will closely t Within the open ended flanged member.

The headed or inner member is preferablyl made of relatively hard spring material such as brass, and .its prongs are preferably slightly sprung outwards. 'The openings upon the flanged or outer member are pref-v erably made by punching out and bending "inwardly portions of the member, as shown to correspond with the points upon the inner member, and' longitudinally spaced so that when the members are in preliminary assembly, as 1n Fig. 3, with the vprong points of the inner member just entering the opeuings in the outer member, the head end of the 'inner member will extend somewhat without the outer member. Preferably the resiliency of the prongs will be sufficient to so maintain the members in handling and the result will be a fastening unit compose-d of two members, interior-.kerl in preassembled relation.

Preferably the end of the outer member is formed with somewhat of a taper as at 7, to facilitate its entry into the opening in which the fastening is to be secured. This opening 8 is bored out of relatively soft material 9, such as wood, to a diameter to fit i position shown in Fig. 4. Upon such long-i5 tudinal movement of the inner member, however, the prongs thereon are engaged by the inwardly bent portions of the outer member and deflected through the holes therein, and into the surrounding material 9.

It will be noted that this last operation.

in the hole firmly seats the outer`member and against the inner member, the inwardly deflecting portions of the outer member being in secure engagement with the outwardly projecting points of theiinner member, sothat the outward member is firmly secured by the inner member, that portion of the inner member which secures the outer member being in shear and therefore utilized to thefullest possible advantage. No strain upon the flange 2 will succeed in loosening the fastenerfor the reason that outward movement of the outer member would simply serve .to more firmly secure the inner member in the material 9.

remove the innermember, which can be` If it should be desired to remove the fastening, however, it is only necessary to first easily'done making use of the head, whereupon the outer member may be-readily lifted from the hole. p yAn advantage of myinvention is the extremely easy and quick manner of effecting the engagementof the fastener in Lits se-v cured position, and the additional fact that, provided. the design of the members is proper, the engagement is assured by the single blow required. Another advanta e is the relatively large flange' area permitte the outer member by its construction, doing away with any necessity for use of a washer.

lt will be apparent that the proportions,

dimensions, materials and `design ofthe members will vary with conditions such "as the size hole awailable, the nature of the mal terial, and the strength required of the fastener.V For example the number of prongs of the inner.V member and corresponding openings in the outer member may be varied from the four indicated in the drawings, and the prongs may be spaced longitudinally upon the inner member. Dbviously any ornamental design desired may be placed upon the head, whether itis integral with or secured upon the inner member; and the flange of the outer member may be similarly ornamented. Nor need the members, particularly the inner one, be seamless circumferentially but can be rolled from a plane stamping. y v

Evidently these and numerous other yvari ations in details of design maybems well employed without in any way exceeding the scope of my invention, and therefore whatl I 'claim is:

l. A two-piece fastener, comprising a pair 'of members pre-assembled, one extending within the other, the outer of said members being flanged `at one end and having lateral opnings, the inner of said members having one end normally projecting outwardly beyond the flanged end of the' outer member and -having prongs sprung twardly to engagement with the outer member to maintain the membersin .said preassembled relation and adapted upon telescoping of said menibers to project outwardly through said openings, whereby the fastener may be handled as a. unit and inserted as a unit into the parts to be fastened, and by a sin le blow upon its head may be driven to astening engagementm 2. A two-piece fastener, comprising a pair of vmembers pre-assembled one extending within the other, the outer vof saidv members being flanged at one end and having lateral openmgs, thef'inner 4of said members having one end normally projectingoutwardly beyond the'flanged end of the outer member and having prongs sprun into said'openings to interlock the mem ers in said preassembled relation and adapted upon telescoping of ,said members to projeet outwardly through said openings, whereby the fastener may be handled as a unit and inserted as a unit into the parts to be fastened, and by a single blow upon its head may bedriven to fastening engagement.

. Signed by me, this y28th day of January,

FRANK n. HIGLEY. 

